1) Preheat oven to 375 degrees F.

2) Melt a small bit of the oil in a skillet. Add chopped potatoes and sauté over medium-high heat for about 3 minutes.

3) Cover and cook over medium-low heat for another 3 minutes, then place in a layer at the bottom of baking dish.

4) Add a bit more cooking fat to the skillet; cook the onion and garlic for 2 to 3 minutes.

5) Add the bell pepper and sliced mushrooms; cook until soft, 4 to 5 minutes.

6) Add in the fresh spinach during the last 2 minutes.

7) Remove from heat and place the veggies on top of the shredded potatoes. Slice the avocado and spread the pieces on top.

8) In a large bowl, whisk together the eggs and season to taste.

9) Pour the egg mixture over the vegetable-filled baking dish, then place in the oven.

10) Bake for 40 to 45 minutes.